Fire-wood drag-saw



' (No Model.) 1 2 Sheets-Sheet 1.

P M. AYLWARD. FIRE WOOD DRAG SAW.

Patented Feb. 19, 1889-.

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I'. M. AYLWARD. PIRE Woon DRAG SAW.

No. 397,957. Patented 11613.19, 1889.

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FRANCIS M. AYLIVARD, OF MEMPHIS, MISSOURI.

FIRE-woon DRAG-SAW.

SPECIFICATION forming part of Letters Patent No. 397,95*?, dated February 19, 1889.

.Application filed August '7, 1888. Serial No. 282,121. (No model.)

To @ZZ whom, t may concern:

Beit known that I, FRANCIS M. AYLWARD, a citizen of the United States, residing at Memphis,in the county of Scotland and State of Missouri, have invented a new and useful Improvement in Fire-Icod Drag-Saws, of which the following is a specification.

My invention relates to an improvement in fire-wood drag-saws; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

My invention further consists in a horsepower motor and coupling devices adapted to connect the same to the dri ving-shaft of the drag-saw, whereby the latter may be operated 5 and my invention further consists in a supporting-frame and carriage for feeding the logs to the saw.

In the accompanying drawings, Figure l is a top plan view of my improved horse-power motor, drag-saw, and carriage, showing the same arranged in the correct relative position. Fig. 2 is an end elevation of my improved horse-power motor. Fig. is a similar view ofv my improved drag-saw. Fig. -t is a side elevation of my improved carriage. Fig. 5 is a detail view.

I will iirst d eserilwl my improved horsepower motor.

A represents a rectangular frame, which is mounted on the running-gear B of a vehicle an d provided with su pporting-wheels C,which are j ournaled on the spindles of the axles, and by means of which the motor may be drawn from place to place. A transverse beam, l), connects the sides of frame A at the center of thesame, and is provided at its center with a vertical spindle or bolt, E, on which is journaled a horizontal driving-wheel, F. The latter has crown-teeth on its lower side and is provided at diam ctrieally-opposite points with keepers G.

II represents a bridge-beam, which is supported on the center of the driving-wheel and has its ends secured in the keepers. O11 the upper side of said bridge, at the center of the same, is secured a square plate or block, I, which is provided on opposite sides with rectangular recesses K, which align with recesses L in the upper ends of the keepers. 'Yokes H are arranged. transversely over the said recesses.

N represents a pair of sweep-levers, which have their inner ends inserted in the recesses K and bearing under the yokes M, and said sweep-levers are also fitted in the recesses L of the keepers G and are bolted on the ends of the bridge II.

I have hereinbefore shown and described two of these sweep-levers; but one only may be employed, or the number of the swecple vers may be increased according' to the number of horses it is proposed to use to operate the motor. The cuter ends of the sweep-levers are provided with singletrees, to which the traces of the draft-animals may be attached in the usual manner.

O represents a longitudinal shaft, which is journaled in bearings P, that are secured on the pair of parallel transverse beams R, that are arranged near one end of the frame A. Rigidly secured to this shaft is a pinion, S, which meshes with the wheel F and a spurwheel, T.

U represents a frame, which is secured to and depends from the inner or rear end of frame A and is arranged below the beams R. Said frame comprises a pair of yokes or brackets, V, and a pair of parallel beams, IV, which connect the same.

X represents a shaft, which is journaled in bearings Y on the beams IV, is parallel with the shaft O, and has a spur-wheel, Z, which meshes with the wheel T. To the rearwardprojecting end of the said shaft O is secured a knuckle or socket.

B represents a shaft, which is parallel with shaft X, in proximity thereto, and is journaled in bearings C on the beams W. Feathered on this shaft is a pinion, D', which is adapted to engage the wheel Z. A lever, E', is pivoted to one of the beams IV and engages an annular groove in the hub of pinion D', whereby the latter may be thrown into or out of engagement with the wheel Z. The rear end of the shaft B is squared and adapted to iit a squared longitudinal opening in a sleeve or socket, F.

I will now proceed to describe my improved drag-saw.

IOO

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G' represents a pair of parallel sills, which are connected. at one end by a transverse beam, lil'A I' represents a pair of curved brackets or yokes, which connect the sills D', and in which is journaled a longitudinal shaft, K'. To the outer end of the said shaft is secured a knuckle, L', and to the inner end thereof is secured a crank-wheel and fly-wheel, M'.

N represents a U shaped stainlard or yoke, which is secured to the beam ll and has its upper end arranged in line with the shaft li'.

0' represents a guide-frame, which eo1nprises a pair ol parallel bars, l", connected at their outer ends and at a suitable distance from their outer ends by means of keepers or loops R'. The inner ends ol' the bars I" are hinged or pivotedloosely on the shaft l' and on a spindle, S',`that projects from the inner side of standard N', at the upper end thereof.

T represents a cross-head, which is arranged and guided between the bars P' and has transverse straps or plates YU' on its upper and lower sides, the ends of which bear against the upper and lower sides of bars P', and thereby serve to guide the cross-head between the said bars. To the inner end of the said cross-head pivoted a pitman, V', and the inner end of the said p itman is pivoted on the wrist-pin of the wheel M', whereby wh en the shaft K' is rotated the cross-head will be caused to reciprocate in the frame O', as will be readily understood.

lV' represents a erosscut-saw, which has its inner end pivoted to the outer end of the crosshead 'l" and is guided in the outerloop or keeper, l.

Secured to the beain ll', near the outerend thereof, is an inverted-Ushaped standard, X', which vis provided at its upper rounded end with a series of notches, Y'. A sigmoidalshaped lever, Z', is fulcrumed to the upper end ot' said standard and has one end connected by a link, A?, to the inner loop, R'.

13" represents a dog, which is pivot ed to the said .lever and is adapted to engage the notches Y', so as to secure the guide-frame 0' of the el s-head in any desired position. A rod, C?, is ,iivoted to the beam I-l, near the outer end of the latter, and has its outer end turned downward at right angles and sharpened, and thereby adapted to be driven into a log, so as to steady the saw-frame when the saw is operated. A coupling-shaft, D?, has its ends inserted in the knuckle on shaft K' and in the tubular sleeve on shaft B', and thereby the rotary motion of the latter may be communicated to the saw-shaft K', so as to set the saw in motion.

It will be understotnl from the foregoing description and by reference to lfig. 2 of the drawings that the shaft Il', owing to the fact that its pinion C' is of much less diameter than the wheel Z, with which it is engaged, is rotated at great speed when the motor is in operation and the pinion is in gear with wheel Z, and. hence when the saw-shaft is coupled to the shaft 3', as before stated, the saw will be operated at a high rate ot speed.

In sawing large logs it is desirable to reduce the speed of the saw to enable the saine to be more easily operated, an d in order to ac eomplish this the sleeve is removed from the shaft l', secured on shaft X, so as to enable the saw-shaft to be coupled to said shaft X, and t-he pinion C is moved out ol engagement with the wheel l).

I will now proceed to describe my improved carriage for feeding the logs to the saw.

E2 represents a frame, which comprifausl a pair ol' parallel longitudinal beams, Il?, and a series of transvtnse beams, (it, which connect the saine.

II2 represents a cylindrical roller, which has its spindles jonrnaled in bearings at one end of the beams F2, and said roller is provided at its center with an annular concave depression, I2, and is provided further with proj eeting radial spurs K2.

L2 represents a ratchet-wheel, which is rig idly secured to one of the spindles of the roller, and M2 represents a lever, which is pivoted on the said spindle on the outer side of the ratchet-wheel, and is provided with a spring-dog, N2, adapted to engage the ratchetwheel, whereby the roller may be rota-ted in the direction indicated by the arrow in 4:, fer the purpose to be hereinafter stated.

O2 represents a truck, which is provided with flanged wheels P2, that travel on the beams F2, the latter thereby constituting a track for the truck. The frame Eiis arranged parallel with the saw-frame and at a suitable distance therefrom and at one side ot the same, and the leg to be sawed placed so that one end thereof rests upon. the truck when the latter is at the outer end of frame E2, and the opposite end of the log rests ou the roller Il. .ily rotating the roller as before described the radial spurs thereof come into engagement with the under side of the log, and thereby move the same in a longitudinal direction across the pat-h of the saw, and the weight of the log on the truck causes the saine to also move longitudinally on the frame E2 until one end of the logproj eets the required distance beyond the saw. The rod C2 is then secured tothe log, as before described, the motor is set in operation, so as to operate the saw, and the operator, by grasping` the lever Z', lowers the frame O' and causes the reciprocating saw YV' to engage and saw through the log. As soon as the saw has passed through the log, the frame is raised so as to clear the saw of the leg. The red C2 is disengaged from the latter and the log again moved a suitable distance, as before described, and again sawed, and so ou until the log has been sawed into as many lengths as may be desired.

Having thus described my invention, I claim- IOO TIO

I. The combination, in a drag-saw, of the supporting-frame having the brackets or standards, the shaft K', j ournaled therein and K', provided with the knuckle L', and the coupling-shaft D2, secured to the knuckle L' and having the sleeve or socket F', said sleeve or socket F being designed to be coupled to the end of either shaft of a horse-power, so as t0 run the drag-Saw at a greater or less Speed, as set forth.

In testimony that I claim the foregoing' as my Own I have hereto affixed my signature in presence of two witnesses.

FRANCIS M. AYLWARD.

IVitHeSSeS:

GEO. H. LAWTON, J r., N. A. LUDWICK. 

